Expansion bulb for plugging a conduit or passage

Details Expansion bulb for plugging a conduit or passage Expansion bulb for plugging a conduit or passage

1983-05-25

1985-03-26

Marcus, Stephen

Pipes and tubular conduits

With closures and plugs

Inflatable

F16L 5512

Patent

active

045067066

ABSTRACT:
An expansion bulb for plugging a conduit or passage which includes an expandable sleeve encircling a body and secured to the body by caps securing opposite ends of the sleeve to the body with each end of the sleeves extending into recesses in the body. Pressurized air or fluid is supplied through a passage in the body to cause radial expansion of the sleeve relative to the body.

REFERENCES:
patent: 1549168 (1925-08-01), Townsend
patent: 2399125 (1946-04-01), Lehnhard, Jr.
patent: 3870085 (1975-03-01), Schneider
patent: 4413653 (1983-11-01), Carter, Jr.

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